The 4th Arecibo Pulsar Survey (ar4) published its results in papers published from 1990 to 2019 with a total of 94 new pulsars discovered. It detected a grand total of 47 pulsars. The fastest pulsar discovered was J2229+2643 with a period of 2.97782 milliseconds and the slowest pulsar was J1746+2245 with a period of 3.46504 seconds.
The smallest pulsar dispersion measure was J1503+2111 with a DM of 3.2603 pc/cc and the largest pulsar dispersion measure was J1859+00 with a DM of 423.0 pc/cc. There were a total of 452 pulsars known before the first discovery was published. This survey increased the total amount of kno
There were 20 papers written about the discoveries of this survey: PSR 1257+12 and PSR 1534+12, Nearby 37.9-ms radio pulsar in a relativistic binary system, Discovery of Two Fast-rotating Pulsars, Two Newly Discovered Millisecond Pulsars, Search for Pulsars at High Galactic Latitudes, Search for Millisecond Pulsars., High Galactic Latitude Pulsar Survey of the Arecibo Sky, Search for extrasolar planetary systems., Search for Millisecond Pulsars at Galactic Latitudes -50 degrees < B < -20 degrees, Princeton-Arecibo Declination-Strip Survey for Millisecond Pulsars. I., Survey for Millisecond Pulsars, Discovery of Three Radio Pulsars from an X-Ray--selected Sample, The Green Bank Northern Sky Survey for Fast Pulsars, Searching for FAST Pulsars, PSR J1829+2456: a relativistic binary pulsar, Arecibo Timing and Single-Pulse Observations of Eighteen Pulsars, Arecibo timing and single-pulse observations of 17 pulsars, Discovery of 10 pulsars in an Arecibo drift-scan survey, PSR J1453+1902 and the radio luminosities of solitary versus binary millisecond pulsars, No pulsar left behind - I. Timing, pulse-sequence polarimetry and emission morphology for 12 pulsars.